is there a glass (instead of resin or plastic) alternative to this ?

Not to my knowledge, unless a substitution has been created. The Yosemite coffee pot comes with the plastic version.

does this top fit the farberware 47053 12 cup percolator?

I have the 8 cup percolator #50124 and it worked fine. 50124 https://www.amazon.com/gp/product/B00005NCWQ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 If you select the 12-cup model on the Amazon page above, for the model I have, it comes up as #47053, but is not listed as a "Yosemite" model, whatever that means. I don't always trust the pictures to be accurate, but they do look the same. Maybe the 12 cup top is larger, but I can't tell. I measured mine (8 cup): the replacement black ring is 2" diameter, the top of the glass part is 1" diameter and rises 7/8" above the ring. If this is the size of your percolator top, it may be a good fit. Otherwise, contact Farberware.

Is the rubber ring made of silicone, and if not, does anyone know of a replacement that uses silicone instead of commercial rubber?

it's neither silicone nor rubber.. it is made of plastic. it does not come in contact with any liquid so you do not have to worry about chemical leaching.

What is the outer diameter of the washer? I see the inner diameter, and the height of the bulb, but not the OD of the washer.

With a standard measuring tape, I measured 6 inches around the outer diameter of the washer.

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Univen Knob Top & Ring fits Farberware Yosemite Coffee Percolators

Univen Knob Top & Ring fits Farberware Yosemite Coffee Percolators

Product ID: 97613155

Details

Brand
Univen
Capacity
8 Cups
Coffee Maker Type
Percolator
Color
Clear
Special Feature
Jug Removable

☕Compatible with 8 & 12 cup Farberware

📏Precision 0.86" lid hole fit

🔧Exact fit for models 50124 & 47053

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Description

☕ Elevate your coffee game with the perfect fit—because your percolator deserves precision!

DURABLE PLASTIC CONSTRUCTION - Crafted from high-quality plastic for lasting performance without melting or warping—your reliable coffee companion.
VERSATILE FOR 8 12 CUP SIZES - Seamlessly supports both 8 and 12 cup percolators, ensuring your coffee ritual stays uninterrupted and stylish.
CLASSIC DESIGN MEETS FUNCTIONALITY - 1.5" tall knob with 0.85" shaft diameter blends timeless style with ergonomic handling for that perfect morning brew.
EASY REPLACEMENT NO ELECTRIC MODELS - Designed specifically for stovetop use, this knob excludes electric percolators, guaranteeing a flawless fit where it counts.
TAILORED FIT FOR YOSEMITE PERCOLATORS - Engineered exclusively for Farberware Yosemite stovetop models with a precise 0.86" lid hole—no guesswork, just perfect compatibility.

The Univen Plastic Knob Top and Washer Ring is a precision-engineered replacement part exclusively compatible with Farberware Yosemite stovetop coffee percolators (models 50124 and 47053) featuring a 0.86" lid hole. Designed for 8 and 12 cup capacities, this durable plastic knob offers a classic look and ergonomic design, ensuring a seamless fit and reliable performance for stovetop brewing since 1997. Not suitable for electric or pre-1997 models.

Specifications

ASIN	B06XC8H5YT
Best Sellers Rank	#63,277 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #447 in Espresso Machine Replacement Parts #838 in Pressure Washer Parts & Accessories
Brand	Univen
Brand Name	Univen
Capacity	8 cups
Coffee Input Type	ground
Coffee Maker Type	Percolator
Color	Clear
Customer Package Type	Standard Packaging
Customer Reviews	4.4 out of 5 stars 1,892 Reviews
Filter Type	Reusable
Human Interface Input	Buttons
Included Components	Filter
Item Weight	0.02 kg
Manufacture Year	1997
Manufacturer	Univen
Material	Plastic
Model Number	RM50124
Number of Items	1
Operation Mode	Manual
Other Special Features of the Product	Model-specific compatibility
Part Number	7539772092
Power Source	manual
Recommended Uses For Product	Replacing knob and washer ring on specific Farberware stovetop percolators
Special Feature	Model-specific compatibility
Specific Uses For Product	Percolator
Style	Classic
UPC	744539860277

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€ 11.56

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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